133534166 has 16 divisors (see below), whose sum is σ = 211637760. Its totient is φ = 63014760.

The previous prime is 133534157. The next prime is 133534213. The reversal of 133534166 is 661435331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3815 + ... + 16781.

It is an arithmetic number, because the mean of its divisors is an integer number (13227360).

Almost surely, 2^133534166 is an apocalyptic number.

133534166 is a deficient number, since it is larger than the sum of its proper divisors (78103594).

133534166 is a wasteful number, since it uses less digits than its factorization.

133534166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13259.

The product of its digits is 19440, while the sum is 32.

The square root of 133534166 is about 11555.6984211254. The cubic root of 133534166 is about 511.1293261974.

Adding to 133534166 its reverse (661435331), we get a palindrome (794969497).

The spelling of 133534166 in words is "one hundred thirty-three million, five hundred thirty-four thousand, one hundred sixty-six".